ya at a minimum on the injection site, maybe on the top of the ampule and the syringe. are there any nerves i need to watch out for in the glutes and quads? i checked out spotinjections but they show all types of spots on the quads so im not sure which place would be best.
INTRAMUSCULAR INJECTIONS (IM), How To Do Injections, Injection Instructions, Injection Methods, Injection Guide, Injection Photos, Injection Pictures, Sterile Needles
that one is more accurate actually. Spotinjections.com is a bit off on some of it, like the glute shot area includes a little of the lower portion which can risk hitting the sciatic nerve and you don't want to hit this!
for quads i can see my veins so i just try and pin between them lol so i don't hit 'em. the site above gives where to inject, it's about the middle of your thigh but in the *outer* portion, syringe/needle will be almost parallel to the floor.
ventrogluteal is another good spot u might want to research.
also, i think i read something about using the same needle that you drew from? don't do that. you want to use a fresh new needle to inject with. piercing to draw will dull the needle, that's why you want a fresh needle. you can draw with a 20-21g and pierce with a 23-25g.